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Finding the Fourth Proportional to 286,335.48, 429,313.65 and 136,598.88

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Solution

The fourth proportional to 286,335.48, 429,313.65 and 136,598.88 is: 204,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,335.48 : 429,313.65 = 136,598.88 : x
  2. Step 2: Convert to fraction form
    286,335.48/429,313.65 = 136,598.88/x
  3. Step 3: Cross multiply
    286,335.48x = 429,313.65 × 136,598.88
  4. Step 4: Simplify right side
    286,335.48x = 58,643,763,758.71
  5. Step 5: Solve for x
    x = 58,643,763,758.71/286,335.48
  6. Step 6: Final answer
    x = 204,807.88

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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.