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Finding the Fourth Proportional to 472,150.40, 651,567.56 and 257,290.40

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Solution

The fourth proportional to 472,150.40, 651,567.56 and 257,290.40 is: 355,060.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,150.40 : 651,567.56 = 257,290.40 : x
  2. Step 2: Convert to fraction form
    472,150.40/651,567.56 = 257,290.40/x
  3. Step 3: Cross multiply
    472,150.40x = 651,567.56 × 257,290.40
  4. Step 4: Simplify right side
    472,150.40x = 167,642,078,139.42
  5. Step 5: Solve for x
    x = 167,642,078,139.42/472,150.40
  6. Step 6: Final answer
    x = 355,060.76

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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.