Home / 224,931.52-310,405.80-129,436.32

Finding the Fourth Proportional to 224,931.52, 310,405.80 and 129,436.32

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Solution

The fourth proportional to 224,931.52, 310,405.80 and 129,436.32 is: 178,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,931.52 : 310,405.80 = 129,436.32 : x
  2. Step 2: Convert to fraction form
    224,931.52/310,405.80 = 129,436.32/x
  3. Step 3: Cross multiply
    224,931.52x = 310,405.80 × 129,436.32
  4. Step 4: Simplify right side
    224,931.52x = 40,177,784,458.66
  5. Step 5: Solve for x
    x = 40,177,784,458.66/224,931.52
  6. Step 6: Final answer
    x = 178,622.30

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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.