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Finding the Fourth Proportional to 457,448.50, 631,280.40 and 253,502.77

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Solution

The fourth proportional to 457,448.50, 631,280.40 and 253,502.77 is: 349,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,448.50 : 631,280.40 = 253,502.77 : x
  2. Step 2: Convert to fraction form
    457,448.50/631,280.40 = 253,502.77/x
  3. Step 3: Cross multiply
    457,448.50x = 631,280.40 × 253,502.77
  4. Step 4: Simplify right side
    457,448.50x = 160,031,330,046.71
  5. Step 5: Solve for x
    x = 160,031,330,046.71/457,448.50
  6. Step 6: Final answer
    x = 349,834.64

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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.