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Finding the Fourth Proportional to 230,038.55, 317,467.70 and 139,402.44

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Solution

The fourth proportional to 230,038.55, 317,467.70 and 139,402.44 is: 192,384.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,038.55 : 317,467.70 = 139,402.44 : x
  2. Step 2: Convert to fraction form
    230,038.55/317,467.70 = 139,402.44/x
  3. Step 3: Cross multiply
    230,038.55x = 317,467.70 × 139,402.44
  4. Step 4: Simplify right side
    230,038.55x = 44,255,771,304.18
  5. Step 5: Solve for x
    x = 44,255,771,304.18/230,038.55
  6. Step 6: Final answer
    x = 192,384.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.