Home / 340,715.15-510,507.74-207,191.51

Finding the Fourth Proportional to 340,715.15, 510,507.74 and 207,191.51

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Solution

The fourth proportional to 340,715.15, 510,507.74 and 207,191.51 is: 310,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,715.15 : 510,507.74 = 207,191.51 : x
  2. Step 2: Convert to fraction form
    340,715.15/510,507.74 = 207,191.51/x
  3. Step 3: Cross multiply
    340,715.15x = 510,507.74 × 207,191.51
  4. Step 4: Simplify right side
    340,715.15x = 105,772,865,928.79
  5. Step 5: Solve for x
    x = 105,772,865,928.79/340,715.15
  6. Step 6: Final answer
    x = 310,443.69

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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.