Home / 318,979.02-478,570.14-94,340.82

Finding the Fourth Proportional to 318,979.02, 478,570.14 and 94,340.82

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Solution

The fourth proportional to 318,979.02, 478,570.14 and 94,340.82 is: 141,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,979.02 : 478,570.14 = 94,340.82 : x
  2. Step 2: Convert to fraction form
    318,979.02/478,570.14 = 94,340.82/x
  3. Step 3: Cross multiply
    318,979.02x = 478,570.14 × 94,340.82
  4. Step 4: Simplify right side
    318,979.02x = 45,148,699,435.11
  5. Step 5: Solve for x
    x = 45,148,699,435.11/318,979.02
  6. Step 6: Final answer
    x = 141,541.28

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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.