Home / 316,758.20-475,038.02-103,477.50

Finding the Fourth Proportional to 316,758.20, 475,038.02 and 103,477.50

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Solution

The fourth proportional to 316,758.20, 475,038.02 and 103,477.50 is: 155,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,758.20 : 475,038.02 = 103,477.50 : x
  2. Step 2: Convert to fraction form
    316,758.20/475,038.02 = 103,477.50/x
  3. Step 3: Cross multiply
    316,758.20x = 475,038.02 × 103,477.50
  4. Step 4: Simplify right side
    316,758.20x = 49,155,746,714.55
  5. Step 5: Solve for x
    x = 49,155,746,714.55/316,758.20
  6. Step 6: Final answer
    x = 155,183.82

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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.