Home / 434,123.28-650,660.04-223,646.40

Finding the Fourth Proportional to 434,123.28, 650,660.04 and 223,646.40

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Solution

The fourth proportional to 434,123.28, 650,660.04 and 223,646.40 is: 335,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,123.28 : 650,660.04 = 223,646.40 : x
  2. Step 2: Convert to fraction form
    434,123.28/650,660.04 = 223,646.40/x
  3. Step 3: Cross multiply
    434,123.28x = 650,660.04 × 223,646.40
  4. Step 4: Simplify right side
    434,123.28x = 145,517,775,569.86
  5. Step 5: Solve for x
    x = 145,517,775,569.86/434,123.28
  6. Step 6: Final answer
    x = 335,199.20

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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.