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Finding the Fourth Proportional to 256,510.80, 384,766.20 and 237,848.40

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Solution

The fourth proportional to 256,510.80, 384,766.20 and 237,848.40 is: 356,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,510.80 : 384,766.20 = 237,848.40 : x
  2. Step 2: Convert to fraction form
    256,510.80/384,766.20 = 237,848.40/x
  3. Step 3: Cross multiply
    256,510.80x = 384,766.20 × 237,848.40
  4. Step 4: Simplify right side
    256,510.80x = 91,516,025,044.08
  5. Step 5: Solve for x
    x = 91,516,025,044.08/256,510.80
  6. Step 6: Final answer
    x = 356,772.60

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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.