Home / 313,319.51-432,381.47-170,079.65

Finding the Fourth Proportional to 313,319.51, 432,381.47 and 170,079.65

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Solution

The fourth proportional to 313,319.51, 432,381.47 and 170,079.65 is: 234,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,319.51 : 432,381.47 = 170,079.65 : x
  2. Step 2: Convert to fraction form
    313,319.51/432,381.47 = 170,079.65/x
  3. Step 3: Cross multiply
    313,319.51x = 432,381.47 × 170,079.65
  4. Step 4: Simplify right side
    313,319.51x = 73,539,286,071.78
  5. Step 5: Solve for x
    x = 73,539,286,071.78/313,319.51
  6. Step 6: Final answer
    x = 234,710.21

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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.