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Finding the Fourth Proportional to 317,038.80, 475,565.37 and 190,784.65

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Solution

The fourth proportional to 317,038.80, 475,565.37 and 190,784.65 is: 286,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,038.80 : 475,565.37 = 190,784.65 : x
  2. Step 2: Convert to fraction form
    317,038.80/475,565.37 = 190,784.65/x
  3. Step 3: Cross multiply
    317,038.80x = 475,565.37 × 190,784.65
  4. Step 4: Simplify right side
    317,038.80x = 90,730,574,600.21
  5. Step 5: Solve for x
    x = 90,730,574,600.21/317,038.80
  6. Step 6: Final answer
    x = 286,181.30

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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.