Home / 505,095.90-757,637.37-145,275.54

Finding the Fourth Proportional to 505,095.90, 757,637.37 and 145,275.54

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Solution

The fourth proportional to 505,095.90, 757,637.37 and 145,275.54 is: 217,911.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,095.90 : 757,637.37 = 145,275.54 : x
  2. Step 2: Convert to fraction form
    505,095.90/757,637.37 = 145,275.54/x
  3. Step 3: Cross multiply
    505,095.90x = 757,637.37 × 145,275.54
  4. Step 4: Simplify right side
    505,095.90x = 110,066,178,050.93
  5. Step 5: Solve for x
    x = 110,066,178,050.93/505,095.90
  6. Step 6: Final answer
    x = 217,911.45

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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.