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Finding the Fourth Proportional to 292,511.60, 438,913.20 and 166,248.80

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Solution

The fourth proportional to 292,511.60, 438,913.20 and 166,248.80 is: 249,456.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,511.60 : 438,913.20 = 166,248.80 : x
  2. Step 2: Convert to fraction form
    292,511.60/438,913.20 = 166,248.80/x
  3. Step 3: Cross multiply
    292,511.60x = 438,913.20 × 166,248.80
  4. Step 4: Simplify right side
    292,511.60x = 72,968,792,804.16
  5. Step 5: Solve for x
    x = 72,968,792,804.16/292,511.60
  6. Step 6: Final answer
    x = 249,456.07

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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.