Home / 347,788.80-521,294.40-148,075.20

Finding the Fourth Proportional to 347,788.80, 521,294.40 and 148,075.20

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Solution

The fourth proportional to 347,788.80, 521,294.40 and 148,075.20 is: 221,947.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,788.80 : 521,294.40 = 148,075.20 : x
  2. Step 2: Convert to fraction form
    347,788.80/521,294.40 = 148,075.20/x
  3. Step 3: Cross multiply
    347,788.80x = 521,294.40 × 148,075.20
  4. Step 4: Simplify right side
    347,788.80x = 77,190,772,538.88
  5. Step 5: Solve for x
    x = 77,190,772,538.88/347,788.80
  6. Step 6: Final answer
    x = 221,947.26

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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.