Home / 212,971.29-318,987.59-176,036.90

Finding the Fourth Proportional to 212,971.29, 318,987.59 and 176,036.90

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Solution

The fourth proportional to 212,971.29, 318,987.59 and 176,036.90 is: 263,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,971.29 : 318,987.59 = 176,036.90 : x
  2. Step 2: Convert to fraction form
    212,971.29/318,987.59 = 176,036.90/x
  3. Step 3: Cross multiply
    212,971.29x = 318,987.59 × 176,036.90
  4. Step 4: Simplify right side
    212,971.29x = 56,153,586,482.07
  5. Step 5: Solve for x
    x = 56,153,586,482.07/212,971.29
  6. Step 6: Final answer
    x = 263,667.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.