Home / 346,329.65-518,312.89-290,233.10

Finding the Fourth Proportional to 346,329.65, 518,312.89 and 290,233.10

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Solution

The fourth proportional to 346,329.65, 518,312.89 and 290,233.10 is: 434,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,329.65 : 518,312.89 = 290,233.10 : x
  2. Step 2: Convert to fraction form
    346,329.65/518,312.89 = 290,233.10/x
  3. Step 3: Cross multiply
    346,329.65x = 518,312.89 × 290,233.10
  4. Step 4: Simplify right side
    346,329.65x = 150,431,555,383.49
  5. Step 5: Solve for x
    x = 150,431,555,383.49/346,329.65
  6. Step 6: Final answer
    x = 434,359.45

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1.5x scale

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.