Home / 301,565.28-452,335.72-76,931.20

Finding the Fourth Proportional to 301,565.28, 452,335.72 and 76,931.20

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Solution

The fourth proportional to 301,565.28, 452,335.72 and 76,931.20 is: 115,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,565.28 : 452,335.72 = 76,931.20 : x
  2. Step 2: Convert to fraction form
    301,565.28/452,335.72 = 76,931.20/x
  3. Step 3: Cross multiply
    301,565.28x = 452,335.72 × 76,931.20
  4. Step 4: Simplify right side
    301,565.28x = 34,798,729,742.46
  5. Step 5: Solve for x
    x = 34,798,729,742.46/301,565.28
  6. Step 6: Final answer
    x = 115,393.69

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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.