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Finding the Fourth Proportional to 370,577.70, 556,012.35 and 145,899.90

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Solution

The fourth proportional to 370,577.70, 556,012.35 and 145,899.90 is: 218,907.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,577.70 : 556,012.35 = 145,899.90 : x
  2. Step 2: Convert to fraction form
    370,577.70/556,012.35 = 145,899.90/x
  3. Step 3: Cross multiply
    370,577.70x = 556,012.35 × 145,899.90
  4. Step 4: Simplify right side
    370,577.70x = 81,122,146,263.77
  5. Step 5: Solve for x
    x = 81,122,146,263.77/370,577.70
  6. Step 6: Final answer
    x = 218,907.25

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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.