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Finding the Fourth Proportional to 369,076.30, 553,614.45 and 322,420.30

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Solution

The fourth proportional to 369,076.30, 553,614.45 and 322,420.30 is: 483,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,076.30 : 553,614.45 = 322,420.30 : x
  2. Step 2: Convert to fraction form
    369,076.30/553,614.45 = 322,420.30/x
  3. Step 3: Cross multiply
    369,076.30x = 553,614.45 × 322,420.30
  4. Step 4: Simplify right side
    369,076.30x = 178,496,537,053.34
  5. Step 5: Solve for x
    x = 178,496,537,053.34/369,076.30
  6. Step 6: Final answer
    x = 483,630.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.