Home / 316,631.64-436,931.64-173,393.40

Finding the Fourth Proportional to 316,631.64, 436,931.64 and 173,393.40

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Solution

The fourth proportional to 316,631.64, 436,931.64 and 173,393.40 is: 239,271.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,631.64 : 436,931.64 = 173,393.40 : x
  2. Step 2: Convert to fraction form
    316,631.64/436,931.64 = 173,393.40/x
  3. Step 3: Cross multiply
    316,631.64x = 436,931.64 × 173,393.40
  4. Step 4: Simplify right side
    316,631.64x = 75,761,062,627.18
  5. Step 5: Solve for x
    x = 75,761,062,627.18/316,631.64
  6. Step 6: Final answer
    x = 239,271.93

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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.