Home / 387,688.46-581,533.21-188,038.26

Finding the Fourth Proportional to 387,688.46, 581,533.21 and 188,038.26

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Solution

The fourth proportional to 387,688.46, 581,533.21 and 188,038.26 is: 282,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,688.46 : 581,533.21 = 188,038.26 : x
  2. Step 2: Convert to fraction form
    387,688.46/581,533.21 = 188,038.26/x
  3. Step 3: Cross multiply
    387,688.46x = 581,533.21 × 188,038.26
  4. Step 4: Simplify right side
    387,688.46x = 109,350,492,911.23
  5. Step 5: Solve for x
    x = 109,350,492,911.23/387,688.46
  6. Step 6: Final answer
    x = 282,057.64

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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.