Home / 319,520.68-440,940.08-176,280.72

Finding the Fourth Proportional to 319,520.68, 440,940.08 and 176,280.72

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Solution

The fourth proportional to 319,520.68, 440,940.08 and 176,280.72 is: 243,268.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,520.68 : 440,940.08 = 176,280.72 : x
  2. Step 2: Convert to fraction form
    319,520.68/440,940.08 = 176,280.72/x
  3. Step 3: Cross multiply
    319,520.68x = 440,940.08 × 176,280.72
  4. Step 4: Simplify right side
    319,520.68x = 77,729,234,779.26
  5. Step 5: Solve for x
    x = 77,729,234,779.26/319,520.68
  6. Step 6: Final answer
    x = 243,268.24

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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.