Home / 371,283.48-556,988.10-128,058.51

Finding the Fourth Proportional to 371,283.48, 556,988.10 and 128,058.51

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Solution

The fourth proportional to 371,283.48, 556,988.10 and 128,058.51 is: 192,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,283.48 : 556,988.10 = 128,058.51 : x
  2. Step 2: Convert to fraction form
    371,283.48/556,988.10 = 128,058.51/x
  3. Step 3: Cross multiply
    371,283.48x = 556,988.10 × 128,058.51
  4. Step 4: Simplify right side
    371,283.48x = 71,327,066,173.73
  5. Step 5: Solve for x
    x = 71,327,066,173.73/371,283.48
  6. Step 6: Final answer
    x = 192,109.45

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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.