Home / 340,557.90-510,835.43-103,899.79

Finding the Fourth Proportional to 340,557.90, 510,835.43 and 103,899.79

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Solution

The fourth proportional to 340,557.90, 510,835.43 and 103,899.79 is: 155,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,557.90 : 510,835.43 = 103,899.79 : x
  2. Step 2: Convert to fraction form
    340,557.90/510,835.43 = 103,899.79/x
  3. Step 3: Cross multiply
    340,557.90x = 510,835.43 × 103,899.79
  4. Step 4: Simplify right side
    340,557.90x = 53,075,693,382.06
  5. Step 5: Solve for x
    x = 53,075,693,382.06/340,557.90
  6. Step 6: Final answer
    x = 155,849.25

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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.