Home / 256,127.04-353,470.68-142,957.08

Finding the Fourth Proportional to 256,127.04, 353,470.68 and 142,957.08

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Solution

The fourth proportional to 256,127.04, 353,470.68 and 142,957.08 is: 197,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,127.04 : 353,470.68 = 142,957.08 : x
  2. Step 2: Convert to fraction form
    256,127.04/353,470.68 = 142,957.08/x
  3. Step 3: Cross multiply
    256,127.04x = 353,470.68 × 142,957.08
  4. Step 4: Simplify right side
    256,127.04x = 50,531,136,278.41
  5. Step 5: Solve for x
    x = 50,531,136,278.41/256,127.04
  6. Step 6: Final answer
    x = 197,289.35

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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.