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Finding the Fourth Proportional to 230,218.27, 317,715.81 and 139,582.91

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Solution

The fourth proportional to 230,218.27, 317,715.81 and 139,582.91 is: 192,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,218.27 : 317,715.81 = 139,582.91 : x
  2. Step 2: Convert to fraction form
    230,218.27/317,715.81 = 139,582.91/x
  3. Step 3: Cross multiply
    230,218.27x = 317,715.81 × 139,582.91
  4. Step 4: Simplify right side
    230,218.27x = 44,347,697,312.81
  5. Step 5: Solve for x
    x = 44,347,697,312.81/230,218.27
  6. Step 6: Final answer
    x = 192,633.27

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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.