Home / 268,235.04-402,353.28-81,248.16

Finding the Fourth Proportional to 268,235.04, 402,353.28 and 81,248.16

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Solution

The fourth proportional to 268,235.04, 402,353.28 and 81,248.16 is: 121,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,235.04 : 402,353.28 = 81,248.16 : x
  2. Step 2: Convert to fraction form
    268,235.04/402,353.28 = 81,248.16/x
  3. Step 3: Cross multiply
    268,235.04x = 402,353.28 × 81,248.16
  4. Step 4: Simplify right side
    268,235.04x = 32,690,463,669.96
  5. Step 5: Solve for x
    x = 32,690,463,669.96/268,235.04
  6. Step 6: Final answer
    x = 121,872.46

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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.