Home / 281,140.48-387,983.10-153,813.16

Finding the Fourth Proportional to 281,140.48, 387,983.10 and 153,813.16

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Solution

The fourth proportional to 281,140.48, 387,983.10 and 153,813.16 is: 212,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,140.48 : 387,983.10 = 153,813.16 : x
  2. Step 2: Convert to fraction form
    281,140.48/387,983.10 = 153,813.16/x
  3. Step 3: Cross multiply
    281,140.48x = 387,983.10 × 153,813.16
  4. Step 4: Simplify right side
    281,140.48x = 59,676,906,637.60
  5. Step 5: Solve for x
    x = 59,676,906,637.60/281,140.48
  6. Step 6: Final answer
    x = 212,267.21

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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.