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Finding the Fourth Proportional to 318,155.84, 439,055.34 and 174,918.32

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Solution

The fourth proportional to 318,155.84, 439,055.34 and 174,918.32 is: 241,387.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,155.84 : 439,055.34 = 174,918.32 : x
  2. Step 2: Convert to fraction form
    318,155.84/439,055.34 = 174,918.32/x
  3. Step 3: Cross multiply
    318,155.84x = 439,055.34 × 174,918.32
  4. Step 4: Simplify right side
    318,155.84x = 76,798,822,459.83
  5. Step 5: Solve for x
    x = 76,798,822,459.83/318,155.84
  6. Step 6: Final answer
    x = 241,387.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.