Home / 287,300.02-430,885.23-109,743.70

Finding the Fourth Proportional to 287,300.02, 430,885.23 and 109,743.70

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Solution

The fourth proportional to 287,300.02, 430,885.23 and 109,743.70 is: 164,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,300.02 : 430,885.23 = 109,743.70 : x
  2. Step 2: Convert to fraction form
    287,300.02/430,885.23 = 109,743.70/x
  3. Step 3: Cross multiply
    287,300.02x = 430,885.23 × 109,743.70
  4. Step 4: Simplify right side
    287,300.02x = 47,286,939,415.55
  5. Step 5: Solve for x
    x = 47,286,939,415.55/287,300.02
  6. Step 6: Final answer
    x = 164,590.80

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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.