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Finding the Fourth Proportional to 500,039.76, 750,235.14 and 145,075.08

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Solution

The fourth proportional to 500,039.76, 750,235.14 and 145,075.08 is: 217,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,039.76 : 750,235.14 = 145,075.08 : x
  2. Step 2: Convert to fraction form
    500,039.76/750,235.14 = 145,075.08/x
  3. Step 3: Cross multiply
    500,039.76x = 750,235.14 × 145,075.08
  4. Step 4: Simplify right side
    500,039.76x = 108,840,422,954.31
  5. Step 5: Solve for x
    x = 108,840,422,954.31/500,039.76
  6. Step 6: Final answer
    x = 217,663.54

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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.