Home / 317,020.80-437,485.14-173,780.40

Finding the Fourth Proportional to 317,020.80, 437,485.14 and 173,780.40

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Solution

The fourth proportional to 317,020.80, 437,485.14 and 173,780.40 is: 239,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,020.80 : 437,485.14 = 173,780.40 : x
  2. Step 2: Convert to fraction form
    317,020.80/437,485.14 = 173,780.40/x
  3. Step 3: Cross multiply
    317,020.80x = 437,485.14 × 173,780.40
  4. Step 4: Simplify right side
    317,020.80x = 76,026,342,623.26
  5. Step 5: Solve for x
    x = 76,026,342,623.26/317,020.80
  6. Step 6: Final answer
    x = 239,815.00

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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.