Home / 472,985.88-652,734.35-258,139.72

Finding the Fourth Proportional to 472,985.88, 652,734.35 and 258,139.72

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Solution

The fourth proportional to 472,985.88, 652,734.35 and 258,139.72 is: 356,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,985.88 : 652,734.35 = 258,139.72 : x
  2. Step 2: Convert to fraction form
    472,985.88/652,734.35 = 258,139.72/x
  3. Step 3: Cross multiply
    472,985.88x = 652,734.35 × 258,139.72
  4. Step 4: Simplify right side
    472,985.88x = 168,496,662,343.38
  5. Step 5: Solve for x
    x = 168,496,662,343.38/472,985.88
  6. Step 6: Final answer
    x = 356,240.36

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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.