Home / 281,386.08-388,312.88-154,069.76

Finding the Fourth Proportional to 281,386.08, 388,312.88 and 154,069.76

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Solution

The fourth proportional to 281,386.08, 388,312.88 and 154,069.76 is: 212,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,386.08 : 388,312.88 = 154,069.76 : x
  2. Step 2: Convert to fraction form
    281,386.08/388,312.88 = 154,069.76/x
  3. Step 3: Cross multiply
    281,386.08x = 388,312.88 × 154,069.76
  4. Step 4: Simplify right side
    281,386.08x = 59,827,272,226.51
  5. Step 5: Solve for x
    x = 59,827,272,226.51/281,386.08
  6. Step 6: Final answer
    x = 212,616.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.