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Finding the Fourth Proportional to 297,044.60, 445,566.90 and 86,703.80

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Solution

The fourth proportional to 297,044.60, 445,566.90 and 86,703.80 is: 130,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,044.60 : 445,566.90 = 86,703.80 : x
  2. Step 2: Convert to fraction form
    297,044.60/445,566.90 = 86,703.80/x
  3. Step 3: Cross multiply
    297,044.60x = 445,566.90 × 86,703.80
  4. Step 4: Simplify right side
    297,044.60x = 38,632,343,384.22
  5. Step 5: Solve for x
    x = 38,632,343,384.22/297,044.60
  6. Step 6: Final answer
    x = 130,055.70

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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.