Home / 286,631.60-429,947.40-251,639.60

Finding the Fourth Proportional to 286,631.60, 429,947.40 and 251,639.60

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Solution

The fourth proportional to 286,631.60, 429,947.40 and 251,639.60 is: 377,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,631.60 : 429,947.40 = 251,639.60 : x
  2. Step 2: Convert to fraction form
    286,631.60/429,947.40 = 251,639.60/x
  3. Step 3: Cross multiply
    286,631.60x = 429,947.40 × 251,639.60
  4. Step 4: Simplify right side
    286,631.60x = 108,191,791,757.04
  5. Step 5: Solve for x
    x = 108,191,791,757.04/286,631.60
  6. Step 6: Final answer
    x = 377,459.40

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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.