Home / 316,144.02-436,279.05-172,903.62

Finding the Fourth Proportional to 316,144.02, 436,279.05 and 172,903.62

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Solution

The fourth proportional to 316,144.02, 436,279.05 and 172,903.62 is: 238,607.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,144.02 : 436,279.05 = 172,903.62 : x
  2. Step 2: Convert to fraction form
    316,144.02/436,279.05 = 172,903.62/x
  3. Step 3: Cross multiply
    316,144.02x = 436,279.05 × 172,903.62
  4. Step 4: Simplify right side
    316,144.02x = 75,434,227,075.16
  5. Step 5: Solve for x
    x = 75,434,227,075.16/316,144.02
  6. Step 6: Final answer
    x = 238,607.16

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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.