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Finding the Fourth Proportional to 560,258, 840,394.28 and 186,281

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Solution

The fourth proportional to 560,258, 840,394.28 and 186,281 is: 279,423.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,258 : 840,394.28 = 186,281 : x
  2. Step 2: Convert to fraction form
    560,258/840,394.28 = 186,281/x
  3. Step 3: Cross multiply
    560,258x = 840,394.28 × 186,281
  4. Step 4: Simplify right side
    560,258x = 156,549,486,872.68
  5. Step 5: Solve for x
    x = 156,549,486,872.68/560,258
  6. Step 6: Final answer
    x = 279,423.92

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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.