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Finding the Fourth Proportional to 399,075.39, 598,598.51 and 118,585.35

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Solution

The fourth proportional to 399,075.39, 598,598.51 and 118,585.35 is: 177,873.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,075.39 : 598,598.51 = 118,585.35 : x
  2. Step 2: Convert to fraction form
    399,075.39/598,598.51 = 118,585.35/x
  3. Step 3: Cross multiply
    399,075.39x = 598,598.51 × 118,585.35
  4. Step 4: Simplify right side
    399,075.39x = 70,985,013,224.90
  5. Step 5: Solve for x
    x = 70,985,013,224.90/399,075.39
  6. Step 6: Final answer
    x = 177,873.69

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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.