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Finding the Fourth Proportional to 286,565.10, 429,847.65 and 262,070.70

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Solution

The fourth proportional to 286,565.10, 429,847.65 and 262,070.70 is: 393,106.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,565.10 : 429,847.65 = 262,070.70 : x
  2. Step 2: Convert to fraction form
    286,565.10/429,847.65 = 262,070.70/x
  3. Step 3: Cross multiply
    286,565.10x = 429,847.65 × 262,070.70
  4. Step 4: Simplify right side
    286,565.10x = 112,650,474,528.86
  5. Step 5: Solve for x
    x = 112,650,474,528.86/286,565.10
  6. Step 6: Final answer
    x = 393,106.05

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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.