Home / 257,528.66-355,379.69-142,812.01

Finding the Fourth Proportional to 257,528.66, 355,379.69 and 142,812.01

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Solution

The fourth proportional to 257,528.66, 355,379.69 and 142,812.01 is: 197,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,528.66 : 355,379.69 = 142,812.01 : x
  2. Step 2: Convert to fraction form
    257,528.66/355,379.69 = 142,812.01/x
  3. Step 3: Cross multiply
    257,528.66x = 355,379.69 × 142,812.01
  4. Step 4: Simplify right side
    257,528.66x = 50,752,485,351.12
  5. Step 5: Solve for x
    x = 50,752,485,351.12/257,528.66
  6. Step 6: Final answer
    x = 197,075.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.