Home / 434,835.60-652,285.80-154,316.40

Finding the Fourth Proportional to 434,835.60, 652,285.80 and 154,316.40

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Solution

The fourth proportional to 434,835.60, 652,285.80 and 154,316.40 is: 231,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,835.60 : 652,285.80 = 154,316.40 : x
  2. Step 2: Convert to fraction form
    434,835.60/652,285.80 = 154,316.40/x
  3. Step 3: Cross multiply
    434,835.60x = 652,285.80 × 154,316.40
  4. Step 4: Simplify right side
    434,835.60x = 100,658,396,427.12
  5. Step 5: Solve for x
    x = 100,658,396,427.12/434,835.60
  6. Step 6: Final answer
    x = 231,486.10

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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.