Home / 316,289.28-436,436.10-188,937.84

Finding the Fourth Proportional to 316,289.28, 436,436.10 and 188,937.84

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Solution

The fourth proportional to 316,289.28, 436,436.10 and 188,937.84 is: 260,708.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,289.28 : 436,436.10 = 188,937.84 : x
  2. Step 2: Convert to fraction form
    316,289.28/436,436.10 = 188,937.84/x
  3. Step 3: Cross multiply
    316,289.28x = 436,436.10 × 188,937.84
  4. Step 4: Simplify right side
    316,289.28x = 82,459,294,032.02
  5. Step 5: Solve for x
    x = 82,459,294,032.02/316,289.28
  6. Step 6: Final answer
    x = 260,708.47

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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.