Home / 346,852.80-519,890.40-147,139.20

Finding the Fourth Proportional to 346,852.80, 519,890.40 and 147,139.20

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Solution

The fourth proportional to 346,852.80, 519,890.40 and 147,139.20 is: 220,543.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,852.80 : 519,890.40 = 147,139.20 : x
  2. Step 2: Convert to fraction form
    346,852.80/519,890.40 = 147,139.20/x
  3. Step 3: Cross multiply
    346,852.80x = 519,890.40 × 147,139.20
  4. Step 4: Simplify right side
    346,852.80x = 76,496,257,543.68
  5. Step 5: Solve for x
    x = 76,496,257,543.68/346,852.80
  6. Step 6: Final answer
    x = 220,543.87

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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.