Home / 287,212.47-430,880.85-87,527.58

Finding the Fourth Proportional to 287,212.47, 430,880.85 and 87,527.58

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Solution

The fourth proportional to 287,212.47, 430,880.85 and 87,527.58 is: 131,310.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,212.47 : 430,880.85 = 87,527.58 : x
  2. Step 2: Convert to fraction form
    287,212.47/430,880.85 = 87,527.58/x
  3. Step 3: Cross multiply
    287,212.47x = 430,880.85 × 87,527.58
  4. Step 4: Simplify right side
    287,212.47x = 37,713,958,068.84
  5. Step 5: Solve for x
    x = 37,713,958,068.84/287,212.47
  6. Step 6: Final answer
    x = 131,310.31

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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.