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Finding the Fourth Proportional to 468,281.43, 646,228.37 and 253,421.55

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Solution

The fourth proportional to 468,281.43, 646,228.37 and 253,421.55 is: 349,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,281.43 : 646,228.37 = 253,421.55 : x
  2. Step 2: Convert to fraction form
    468,281.43/646,228.37 = 253,421.55/x
  3. Step 3: Cross multiply
    468,281.43x = 646,228.37 × 253,421.55
  4. Step 4: Simplify right side
    468,281.43x = 163,768,195,812.93
  5. Step 5: Solve for x
    x = 163,768,195,812.93/468,281.43
  6. Step 6: Final answer
    x = 349,721.74

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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.