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Finding the Fourth Proportional to 468,275.78, 646,218.19 and 253,415.89

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Solution

The fourth proportional to 468,275.78, 646,218.19 and 253,415.89 is: 349,712.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,275.78 : 646,218.19 = 253,415.89 : x
  2. Step 2: Convert to fraction form
    468,275.78/646,218.19 = 253,415.89/x
  3. Step 3: Cross multiply
    468,275.78x = 646,218.19 × 253,415.89
  4. Step 4: Simplify right side
    468,275.78x = 163,761,953,254.87
  5. Step 5: Solve for x
    x = 163,761,953,254.87/468,275.78
  6. Step 6: Final answer
    x = 349,712.63

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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.