Home / 380,985.12-571,477.68-156,307.32

Finding the Fourth Proportional to 380,985.12, 571,477.68 and 156,307.32

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Solution

The fourth proportional to 380,985.12, 571,477.68 and 156,307.32 is: 234,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,985.12 : 571,477.68 = 156,307.32 : x
  2. Step 2: Convert to fraction form
    380,985.12/571,477.68 = 156,307.32/x
  3. Step 3: Cross multiply
    380,985.12x = 571,477.68 × 156,307.32
  4. Step 4: Simplify right side
    380,985.12x = 89,326,144,600.62
  5. Step 5: Solve for x
    x = 89,326,144,600.62/380,985.12
  6. Step 6: Final answer
    x = 234,460.98

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1.5x scale

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.