Home / 347,345.20-521,075.40-147,761.20

Finding the Fourth Proportional to 347,345.20, 521,075.40 and 147,761.20

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Solution

The fourth proportional to 347,345.20, 521,075.40 and 147,761.20 is: 221,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,345.20 : 521,075.40 = 147,761.20 : x
  2. Step 2: Convert to fraction form
    347,345.20/521,075.40 = 147,761.20/x
  3. Step 3: Cross multiply
    347,345.20x = 521,075.40 × 147,761.20
  4. Step 4: Simplify right side
    347,345.20x = 76,994,726,394.48
  5. Step 5: Solve for x
    x = 76,994,726,394.48/347,345.20
  6. Step 6: Final answer
    x = 221,666.30

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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.