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Finding the Fourth Proportional to 425,251.82, 586,807.12 and 243,978.68

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Solution

The fourth proportional to 425,251.82, 586,807.12 and 243,978.68 is: 336,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,251.82 : 586,807.12 = 243,978.68 : x
  2. Step 2: Convert to fraction form
    425,251.82/586,807.12 = 243,978.68/x
  3. Step 3: Cross multiply
    425,251.82x = 586,807.12 × 243,978.68
  4. Step 4: Simplify right side
    425,251.82x = 143,168,426,552.20
  5. Step 5: Solve for x
    x = 143,168,426,552.20/425,251.82
  6. Step 6: Final answer
    x = 336,667.40

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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.