Home / 258,031.80-387,047.70-151,306.20

Finding the Fourth Proportional to 258,031.80, 387,047.70 and 151,306.20

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Solution

The fourth proportional to 258,031.80, 387,047.70 and 151,306.20 is: 226,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,031.80 : 387,047.70 = 151,306.20 : x
  2. Step 2: Convert to fraction form
    258,031.80/387,047.70 = 151,306.20/x
  3. Step 3: Cross multiply
    258,031.80x = 387,047.70 × 151,306.20
  4. Step 4: Simplify right side
    258,031.80x = 58,562,716,705.74
  5. Step 5: Solve for x
    x = 58,562,716,705.74/258,031.80
  6. Step 6: Final answer
    x = 226,959.30

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1.5x scale

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.