Home / 218,681.03-301,881.15-154,202.81

Finding the Fourth Proportional to 218,681.03, 301,881.15 and 154,202.81

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Solution

The fourth proportional to 218,681.03, 301,881.15 and 154,202.81 is: 212,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,681.03 : 301,881.15 = 154,202.81 : x
  2. Step 2: Convert to fraction form
    218,681.03/301,881.15 = 154,202.81/x
  3. Step 3: Cross multiply
    218,681.03x = 301,881.15 × 154,202.81
  4. Step 4: Simplify right side
    218,681.03x = 46,550,920,106.63
  5. Step 5: Solve for x
    x = 46,550,920,106.63/218,681.03
  6. Step 6: Final answer
    x = 212,871.32

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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.