Home / 438,209.40-657,351.73-153,875.51

Finding the Fourth Proportional to 438,209.40, 657,351.73 and 153,875.51

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Solution

The fourth proportional to 438,209.40, 657,351.73 and 153,875.51 is: 230,826.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,209.40 : 657,351.73 = 153,875.51 : x
  2. Step 2: Convert to fraction form
    438,209.40/657,351.73 = 153,875.51/x
  3. Step 3: Cross multiply
    438,209.40x = 657,351.73 × 153,875.51
  4. Step 4: Simplify right side
    438,209.40x = 101,150,329,031.69
  5. Step 5: Solve for x
    x = 101,150,329,031.69/438,209.40
  6. Step 6: Final answer
    x = 230,826.47

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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.