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Finding the Fourth Proportional to 413,323.60, 619,985.40 and 147,384.40

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Solution

The fourth proportional to 413,323.60, 619,985.40 and 147,384.40 is: 221,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,323.60 : 619,985.40 = 147,384.40 : x
  2. Step 2: Convert to fraction form
    413,323.60/619,985.40 = 147,384.40/x
  3. Step 3: Cross multiply
    413,323.60x = 619,985.40 × 147,384.40
  4. Step 4: Simplify right side
    413,323.60x = 91,376,176,187.76
  5. Step 5: Solve for x
    x = 91,376,176,187.76/413,323.60
  6. Step 6: Final answer
    x = 221,076.60

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Similar ratio
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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.