Home / 370,386.48-511,106.85-217,430.94

Finding the Fourth Proportional to 370,386.48, 511,106.85 and 217,430.94

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Solution

The fourth proportional to 370,386.48, 511,106.85 and 217,430.94 is: 300,039.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,386.48 : 511,106.85 = 217,430.94 : x
  2. Step 2: Convert to fraction form
    370,386.48/511,106.85 = 217,430.94/x
  3. Step 3: Cross multiply
    370,386.48x = 511,106.85 × 217,430.94
  4. Step 4: Simplify right side
    370,386.48x = 111,130,442,835.94
  5. Step 5: Solve for x
    x = 111,130,442,835.94/370,386.48
  6. Step 6: Final answer
    x = 300,039.15

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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.