Home / 421,038.11-581,025.75-230,047.40

Finding the Fourth Proportional to 421,038.11, 581,025.75 and 230,047.40

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Solution

The fourth proportional to 421,038.11, 581,025.75 and 230,047.40 is: 317,461.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,038.11 : 581,025.75 = 230,047.40 : x
  2. Step 2: Convert to fraction form
    421,038.11/581,025.75 = 230,047.40/x
  3. Step 3: Cross multiply
    421,038.11x = 581,025.75 × 230,047.40
  4. Step 4: Simplify right side
    421,038.11x = 133,663,463,120.55
  5. Step 5: Solve for x
    x = 133,663,463,120.55/421,038.11
  6. Step 6: Final answer
    x = 317,461.67

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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.