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Finding the Fourth Proportional to 292,684.80, 439,027.20 and 71,068.80

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Solution

The fourth proportional to 292,684.80, 439,027.20 and 71,068.80 is: 106,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,684.80 : 439,027.20 = 71,068.80 : x
  2. Step 2: Convert to fraction form
    292,684.80/439,027.20 = 71,068.80/x
  3. Step 3: Cross multiply
    292,684.80x = 439,027.20 × 71,068.80
  4. Step 4: Simplify right side
    292,684.80x = 31,201,136,271.36
  5. Step 5: Solve for x
    x = 31,201,136,271.36/292,684.80
  6. Step 6: Final answer
    x = 106,603.20

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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.