Home / 319,070.90-478,437.05-94,400.39

Finding the Fourth Proportional to 319,070.90, 478,437.05 and 94,400.39

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Solution

The fourth proportional to 319,070.90, 478,437.05 and 94,400.39 is: 141,550.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,070.90 : 478,437.05 = 94,400.39 : x
  2. Step 2: Convert to fraction form
    319,070.90/478,437.05 = 94,400.39/x
  3. Step 3: Cross multiply
    319,070.90x = 478,437.05 × 94,400.39
  4. Step 4: Simplify right side
    319,070.90x = 45,164,641,246.26
  5. Step 5: Solve for x
    x = 45,164,641,246.26/319,070.90
  6. Step 6: Final answer
    x = 141,550.49

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1.5x scale

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.