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Finding the Fourth Proportional to 469,145.88, 647,417.68 and 254,280.40

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Solution

The fourth proportional to 469,145.88, 647,417.68 and 254,280.40 is: 350,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,145.88 : 647,417.68 = 254,280.40 : x
  2. Step 2: Convert to fraction form
    469,145.88/647,417.68 = 254,280.40/x
  3. Step 3: Cross multiply
    469,145.88x = 647,417.68 × 254,280.40
  4. Step 4: Simplify right side
    469,145.88x = 164,625,626,637.47
  5. Step 5: Solve for x
    x = 164,625,626,637.47/469,145.88
  6. Step 6: Final answer
    x = 350,904.98

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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.