Home / 291,359.10-402,075.45-170,523.39

Finding the Fourth Proportional to 291,359.10, 402,075.45 and 170,523.39

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Solution

The fourth proportional to 291,359.10, 402,075.45 and 170,523.39 is: 235,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,359.10 : 402,075.45 = 170,523.39 : x
  2. Step 2: Convert to fraction form
    291,359.10/402,075.45 = 170,523.39/x
  3. Step 3: Cross multiply
    291,359.10x = 402,075.45 × 170,523.39
  4. Step 4: Simplify right side
    291,359.10x = 68,563,268,769.78
  5. Step 5: Solve for x
    x = 68,563,268,769.78/291,359.10
  6. Step 6: Final answer
    x = 235,322.21

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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.