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Finding the Fourth Proportional to 472,149.95, 651,566.96 and 257,289.96

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Solution

The fourth proportional to 472,149.95, 651,566.96 and 257,289.96 is: 355,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,149.95 : 651,566.96 = 257,289.96 : x
  2. Step 2: Convert to fraction form
    472,149.95/651,566.96 = 257,289.96/x
  3. Step 3: Cross multiply
    472,149.95x = 651,566.96 × 257,289.96
  4. Step 4: Simplify right side
    472,149.95x = 167,641,637,718.95
  5. Step 5: Solve for x
    x = 167,641,637,718.95/472,149.95
  6. Step 6: Final answer
    x = 355,060.16

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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.