Home / 287,570.22-430,878.54-174,909.60

Finding the Fourth Proportional to 287,570.22, 430,878.54 and 174,909.60

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Solution

The fourth proportional to 287,570.22, 430,878.54 and 174,909.60 is: 262,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,570.22 : 430,878.54 = 174,909.60 : x
  2. Step 2: Convert to fraction form
    287,570.22/430,878.54 = 174,909.60/x
  3. Step 3: Cross multiply
    287,570.22x = 430,878.54 × 174,909.60
  4. Step 4: Simplify right side
    287,570.22x = 75,364,793,079.98
  5. Step 5: Solve for x
    x = 75,364,793,079.98/287,570.22
  6. Step 6: Final answer
    x = 262,074.40

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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.