Home / 316,311.09-436,509.03-173,071.72

Finding the Fourth Proportional to 316,311.09, 436,509.03 and 173,071.72

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Solution

The fourth proportional to 316,311.09, 436,509.03 and 173,071.72 is: 238,838.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,311.09 : 436,509.03 = 173,071.72 : x
  2. Step 2: Convert to fraction form
    316,311.09/436,509.03 = 173,071.72/x
  3. Step 3: Cross multiply
    316,311.09x = 436,509.03 × 173,071.72
  4. Step 4: Simplify right side
    316,311.09x = 75,547,368,617.63
  5. Step 5: Solve for x
    x = 75,547,368,617.63/316,311.09
  6. Step 6: Final answer
    x = 238,838.82

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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.