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Finding the Fourth Proportional to 346,666.80, 520,048.80 and 136,255.80

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Solution

The fourth proportional to 346,666.80, 520,048.80 and 136,255.80 is: 204,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,666.80 : 520,048.80 = 136,255.80 : x
  2. Step 2: Convert to fraction form
    346,666.80/520,048.80 = 136,255.80/x
  3. Step 3: Cross multiply
    346,666.80x = 520,048.80 × 136,255.80
  4. Step 4: Simplify right side
    346,666.80x = 70,859,665,283.04
  5. Step 5: Solve for x
    x = 70,859,665,283.04/346,666.80
  6. Step 6: Final answer
    x = 204,402.80

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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.