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Finding the Fourth Proportional to 291,777.84, 402,769.40 and 250,779.72

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Solution

The fourth proportional to 291,777.84, 402,769.40 and 250,779.72 is: 346,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,777.84 : 402,769.40 = 250,779.72 : x
  2. Step 2: Convert to fraction form
    291,777.84/402,769.40 = 250,779.72/x
  3. Step 3: Cross multiply
    291,777.84x = 402,769.40 × 250,779.72
  4. Step 4: Simplify right side
    291,777.84x = 101,006,397,356.57
  5. Step 5: Solve for x
    x = 101,006,397,356.57/291,777.84
  6. Step 6: Final answer
    x = 346,175.70

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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.