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Finding the Fourth Proportional to 346,279.80, 486,191.40 and 346,279.80

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Solution

The fourth proportional to 346,279.80, 486,191.40 and 346,279.80 is: 486,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,279.80 : 486,191.40 = 346,279.80 : x
  2. Step 2: Convert to fraction form
    346,279.80/486,191.40 = 346,279.80/x
  3. Step 3: Cross multiply
    346,279.80x = 486,191.40 × 346,279.80
  4. Step 4: Simplify right side
    346,279.80x = 168,358,260,753.72
  5. Step 5: Solve for x
    x = 168,358,260,753.72/346,279.80
  6. Step 6: Final answer
    x = 486,191.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.