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Finding the Fourth Proportional to 284,239.53, 392,240.27 and 156,912.39

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Solution

The fourth proportional to 284,239.53, 392,240.27 and 156,912.39 is: 216,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,239.53 : 392,240.27 = 156,912.39 : x
  2. Step 2: Convert to fraction form
    284,239.53/392,240.27 = 156,912.39/x
  3. Step 3: Cross multiply
    284,239.53x = 392,240.27 × 156,912.39
  4. Step 4: Simplify right side
    284,239.53x = 61,547,358,612.23
  5. Step 5: Solve for x
    x = 61,547,358,612.23/284,239.53
  6. Step 6: Final answer
    x = 216,533.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.