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Finding the Fourth Proportional to 539,085.40, 808,482.30 and 160,005.40

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Solution

The fourth proportional to 539,085.40, 808,482.30 and 160,005.40 is: 239,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,085.40 : 808,482.30 = 160,005.40 : x
  2. Step 2: Convert to fraction form
    539,085.40/808,482.30 = 160,005.40/x
  3. Step 3: Cross multiply
    539,085.40x = 808,482.30 × 160,005.40
  4. Step 4: Simplify right side
    539,085.40x = 129,361,533,804.42
  5. Step 5: Solve for x
    x = 129,361,533,804.42/539,085.40
  6. Step 6: Final answer
    x = 239,964.83

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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.