Home / 268,436.08-402,712.98-81,462.16

Finding the Fourth Proportional to 268,436.08, 402,712.98 and 81,462.16

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Solution

The fourth proportional to 268,436.08, 402,712.98 and 81,462.16 is: 122,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,436.08 : 402,712.98 = 81,462.16 : x
  2. Step 2: Convert to fraction form
    268,436.08/402,712.98 = 81,462.16/x
  3. Step 3: Cross multiply
    268,436.08x = 402,712.98 × 81,462.16
  4. Step 4: Simplify right side
    268,436.08x = 32,805,869,210.84
  5. Step 5: Solve for x
    x = 32,805,869,210.84/268,436.08
  6. Step 6: Final answer
    x = 122,211.10

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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.