Home / 216,428.82-298,666.56-118,307.70

Finding the Fourth Proportional to 216,428.82, 298,666.56 and 118,307.70

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Solution

The fourth proportional to 216,428.82, 298,666.56 and 118,307.70 is: 163,261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,428.82 : 298,666.56 = 118,307.70 : x
  2. Step 2: Convert to fraction form
    216,428.82/298,666.56 = 118,307.70/x
  3. Step 3: Cross multiply
    216,428.82x = 298,666.56 × 118,307.70
  4. Step 4: Simplify right side
    216,428.82x = 35,334,553,780.51
  5. Step 5: Solve for x
    x = 35,334,553,780.51/216,428.82
  6. Step 6: Final answer
    x = 163,261.78

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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.