Home / 282,916.80-390,427.94-153,858.05

Finding the Fourth Proportional to 282,916.80, 390,427.94 and 153,858.05

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Solution

The fourth proportional to 282,916.80, 390,427.94 and 153,858.05 is: 212,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,916.80 : 390,427.94 = 153,858.05 : x
  2. Step 2: Convert to fraction form
    282,916.80/390,427.94 = 153,858.05/x
  3. Step 3: Cross multiply
    282,916.80x = 390,427.94 × 153,858.05
  4. Step 4: Simplify right side
    282,916.80x = 60,070,479,946.42
  5. Step 5: Solve for x
    x = 60,070,479,946.42/282,916.80
  6. Step 6: Final answer
    x = 212,325.60

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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.