Home / 425,026.31-637,386.27-140,664.32

Finding the Fourth Proportional to 425,026.31, 637,386.27 and 140,664.32

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Solution

The fourth proportional to 425,026.31, 637,386.27 and 140,664.32 is: 210,945.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,026.31 : 637,386.27 = 140,664.32 : x
  2. Step 2: Convert to fraction form
    425,026.31/637,386.27 = 140,664.32/x
  3. Step 3: Cross multiply
    425,026.31x = 637,386.27 × 140,664.32
  4. Step 4: Simplify right side
    425,026.31x = 89,657,506,246.89
  5. Step 5: Solve for x
    x = 89,657,506,246.89/425,026.31
  6. Step 6: Final answer
    x = 210,945.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.