Home / 421,678.92-581,916.32-230,692.32

Finding the Fourth Proportional to 421,678.92, 581,916.32 and 230,692.32

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Solution

The fourth proportional to 421,678.92, 581,916.32 and 230,692.32 is: 318,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,678.92 : 581,916.32 = 230,692.32 : x
  2. Step 2: Convert to fraction form
    421,678.92/581,916.32 = 230,692.32/x
  3. Step 3: Cross multiply
    421,678.92x = 581,916.32 × 230,692.32
  4. Step 4: Simplify right side
    421,678.92x = 134,243,624,753.20
  5. Step 5: Solve for x
    x = 134,243,624,753.20/421,678.92
  6. Step 6: Final answer
    x = 318,355.08

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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.