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Finding the Fourth Proportional to 288,548.55, 432,822.83 and 155,688.30

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Solution

The fourth proportional to 288,548.55, 432,822.83 and 155,688.30 is: 233,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,548.55 : 432,822.83 = 155,688.30 : x
  2. Step 2: Convert to fraction form
    288,548.55/432,822.83 = 155,688.30/x
  3. Step 3: Cross multiply
    288,548.55x = 432,822.83 × 155,688.30
  4. Step 4: Simplify right side
    288,548.55x = 67,385,450,603.89
  5. Step 5: Solve for x
    x = 67,385,450,603.89/288,548.55
  6. Step 6: Final answer
    x = 233,532.45

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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.