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Finding the Fourth Proportional to 340,075.80, 510,132.90 and 103,426.20

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Solution

The fourth proportional to 340,075.80, 510,132.90 and 103,426.20 is: 155,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,075.80 : 510,132.90 = 103,426.20 : x
  2. Step 2: Convert to fraction form
    340,075.80/510,132.90 = 103,426.20/x
  3. Step 3: Cross multiply
    340,075.80x = 510,132.90 × 103,426.20
  4. Step 4: Simplify right side
    340,075.80x = 52,761,107,341.98
  5. Step 5: Solve for x
    x = 52,761,107,341.98/340,075.80
  6. Step 6: Final answer
    x = 155,145.14

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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.