Home / 290,836.23-436,663.07-148,783.40

Finding the Fourth Proportional to 290,836.23, 436,663.07 and 148,783.40

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Solution

The fourth proportional to 290,836.23, 436,663.07 and 148,783.40 is: 223,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,836.23 : 436,663.07 = 148,783.40 : x
  2. Step 2: Convert to fraction form
    290,836.23/436,663.07 = 148,783.40/x
  3. Step 3: Cross multiply
    290,836.23x = 436,663.07 × 148,783.40
  4. Step 4: Simplify right side
    290,836.23x = 64,968,213,281.81
  5. Step 5: Solve for x
    x = 64,968,213,281.81/290,836.23
  6. Step 6: Final answer
    x = 223,384.18

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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.