Home / 316,399.40-436,631.34-173,159.36

Finding the Fourth Proportional to 316,399.40, 436,631.34 and 173,159.36

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Solution

The fourth proportional to 316,399.40, 436,631.34 and 173,159.36 is: 238,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,399.40 : 436,631.34 = 173,159.36 : x
  2. Step 2: Convert to fraction form
    316,399.40/436,631.34 = 173,159.36/x
  3. Step 3: Cross multiply
    316,399.40x = 436,631.34 × 173,159.36
  4. Step 4: Simplify right side
    316,399.40x = 75,606,803,390.34
  5. Step 5: Solve for x
    x = 75,606,803,390.34/316,399.40
  6. Step 6: Final answer
    x = 238,960.01

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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.