Home / 318,664.29-439,756.80-175,424.34

Finding the Fourth Proportional to 318,664.29, 439,756.80 and 175,424.34

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Solution

The fourth proportional to 318,664.29, 439,756.80 and 175,424.34 is: 242,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,664.29 : 439,756.80 = 175,424.34 : x
  2. Step 2: Convert to fraction form
    318,664.29/439,756.80 = 175,424.34/x
  3. Step 3: Cross multiply
    318,664.29x = 439,756.80 × 175,424.34
  4. Step 4: Simplify right side
    318,664.29x = 77,144,046,400.51
  5. Step 5: Solve for x
    x = 77,144,046,400.51/318,664.29
  6. Step 6: Final answer
    x = 242,085.63

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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.